Brass 3-way diverter tee

This branch tee has neither handle nor knob. Water enters through the hexagonal female nut and leaves through two threaded male ends, one in line, the other at a right angle.

Both outlets are therefore open at the same time. To shut one off without the other, you need a valve on each branch, or an appliance with its own control, such as a trigger handset.

The body has raised markings and shows yellow brass at the bottom of the nut.

In the lifestyle photos, the tee is screwed straight onto a wall isolation valve: it takes the place of a single outlet and gives two, each connected to its own braided hose. It is the simplest way to add an outlet to an existing supply, in a shower, bathroom or utility room.

The stated connection is 1/2″ (15x21). Compare it with your isolation valve before ordering; a reducing bush bridges any difference in size.

As there is nothing to operate, it can stay hidden behind a unit or an access hatch.

Fit it with the water off, using a spanner. Put PTFE tape on both male threads and a flat washer in the female nut before tightening: the washer seals the supply side.

Once the water is back on, watch each connection for a few minutes to make sure none weeps.

The silver finish wipes clean with a damp cloth; a little white vinegar removes limescale marks. With no moving parts, the tee needs no further attention. If a connection beads, a slight extra tightening is usually enough.